Pollution causes a lot of problems in our oceans. Pollution from industry, farming, litter, and from human carelessness is harming everything that depends on the ocean for survival. In this book, readers will learn about the different types of pollution that are affecting the world's oceans. Readers will find out how pollution hurts plants and animals, and how it may also affect humans. Through photographs of animals and concerned volunteers and scientists, readers will learn about the work people are doing to help clean up the ocean.